GB813801A - Improvements relating to martensitic stainless steels - Google Patents
Improvements relating to martensitic stainless steelsInfo
- Publication number
- GB813801A GB813801A GB2679654A GB2679654A GB813801A GB 813801 A GB813801 A GB 813801A GB 2679654 A GB2679654 A GB 2679654A GB 2679654 A GB2679654 A GB 2679654A GB 813801 A GB813801 A GB 813801A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plus
- heating
- cooling
- hours
- content
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910000734 martensite Inorganic materials 0.000 title abstract 2
- 229910001220 stainless steel Inorganic materials 0.000 title 1
- 238000001816 cooling Methods 0.000 abstract 5
- 238000010438 heat treatment Methods 0.000 abstract 4
- 229910045601 alloy Inorganic materials 0.000 abstract 3
- 239000000956 alloy Substances 0.000 abstract 3
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- TWXTWZIUMCFMSG-UHFFFAOYSA-N nitride(3-) Chemical compound [N-3] TWXTWZIUMCFMSG-UHFFFAOYSA-N 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000005496 tempering Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Corrosion-resistant martensitic steels have compositions within the following range in per cent by weight: C plus N 0.03-0.15 (N not exceeding 0.05); Cr over 15 and up to 17.5; Ni 4-6.5; Cu 0.5-2.5; Mo 0.3-3.0; Si up to 1.0; Mn up to 1.0; one of the following carbide or nitride forming elements namely Nb (including any residual Ta) 8 to 12 times the C plus N content. Ti 5 to 10 times the C plus N content. V 5 to 10 times the C plus N content. Fe and incidental impurities the remainder. The alloy may be subjected to a hardening and tempering treatment in the range 350-650 DEG C., e.g. for about 2 hours. This treatment may be preceded by heating to about 1000 DEG C., air cooling and heating for about 2 hours at 750 DEG C. and air cooling, or heating to 1000 DEG C. and cooling at a rate not over 100 DEG C. per hour, or heating to 1000 DEG C., rapid cooling from that temperature, and cooling to -50 DEG C. to -80 DEG C. for about 2 hours. The Provisional Specification describes also alloys containing Cr over 15 and up to 18, Ni 3-8, Mo 0.3-2.5, Mn up to 5, a carbide or nitride former in the range 0.3-1.3 the alloy being otherwise of the same composition. Specification 782,172 is referred to.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB813801A true GB813801A (en) | 1959-05-21 |
Family
ID=1740238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2679654A Expired GB813801A (en) | 1954-09-15 | Improvements relating to martensitic stainless steels |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB813801A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0257780A2 (en) * | 1986-08-21 | 1988-03-02 | Crucible Materials Corporation | Age-hardenable stainless steel |
| US4964924A (en) * | 1988-07-07 | 1990-10-23 | Kubota Corporation | Suction roll made of a martensitic stainless steel |
| CN113897546A (en) * | 2021-09-17 | 2022-01-07 | 温州瑞银不锈钢制造有限公司 | 17-4PH stainless steel |
-
1954
- 1954-09-15 GB GB2679654A patent/GB813801A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0257780A2 (en) * | 1986-08-21 | 1988-03-02 | Crucible Materials Corporation | Age-hardenable stainless steel |
| EP0257780A3 (en) * | 1986-08-21 | 1989-03-08 | Crucible Materials Corporation | Age-hardenable stainless steel |
| US4964924A (en) * | 1988-07-07 | 1990-10-23 | Kubota Corporation | Suction roll made of a martensitic stainless steel |
| EP0400195A1 (en) * | 1988-07-07 | 1990-12-05 | Kubota Corporation | Martensitic stainless steel |
| CN113897546A (en) * | 2021-09-17 | 2022-01-07 | 温州瑞银不锈钢制造有限公司 | 17-4PH stainless steel |
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